When you’re keen on looking at drone racing kits, Here's an example from DJI (added parts are required with Every single kit/process): Medium drones, that are most likely what you have seen if you’ve seen a drone cruising about your neighborhood, do seem on some radars, but are lawfully needed https://cruzjlmqk.blogsmine.com/28763036/fascination-about-grounding-rod-length-for-portable-generator